Home / 500,280,419.68-690,387,044.63-277,276,498.85

Finding the Fourth Proportional to 500,280,419.68, 690,387,044.63 and 277,276,498.85

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Solution

The fourth proportional to 500,280,419.68, 690,387,044.63 and 277,276,498.85 is: 382,641,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,419.68 : 690,387,044.63 = 277,276,498.85 : x
  2. Step 2: Convert to fraction form
    500,280,419.68/690,387,044.63 = 277,276,498.85/x
  3. Step 3: Cross multiply
    500,280,419.68x = 690,387,044.63 × 277,276,498.85
  4. Step 4: Simplify right side
    500,280,419.68x = 191,428,102,586,744,704
  5. Step 5: Solve for x
    x = 191,428,102,586,744,704/500,280,419.68
  6. Step 6: Final answer
    x = 382,641,604.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.